C:暗反应受到抑制
A:光合作用的酶受到破坏
B:类囊体膜结构受到破坏
D:叶绿体DNA受到损伤
9时和3时,时钟的时针和分针所成的角度( )。
冷暖气团相遇,暖气团被抬升,形成的降水属于( )
Tim told us that his company ______ robots to do some of the work.